Chilkat PHP Downloads

<?php// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.// For example, if using Chilkat v9.5.0.48, then include as shown here:include("chilkat_9_5_0.php");
// This example requires the Chilkat API to have been previously unlocked.// See Global Unlock Sample for sample code.// The XML to be signed in this example contains the following:// <?xml version="1.0" encoding="UTF-8" standalone="no"?>// <Envelope>// <Header>// <Security>// </Security>// </Header>// <Body Id="abc">// <z:FooBar xmlns:z="https://www.example-code.com"/>// </Body>// </Envelope>// The above XML is available at https://www.chilkatsoft.com/exampleData/xmlToSign.xml// Fetch the XML and then sign it..
$url = 'https://www.chilkatsoft.com/exampleData/xmlToSign.xml';
$http = newCkHttp();
$sbXml = newCkStringBuilder();
$success = $http->QuickGetSb($url,$sbXml);
if ($success != true) {
print $http->lastErrorText() . "\n";
exit;
}
// This example uses a DSA private key for signing.// There are many ways of getting an DSA private key using Chilkat. This example// will load it from an encrypted PEM file.// In case you would like to use it, I put the DSA private key PEM file here:// https://www.chilkatsoft.com/exampleData/dsa1024_secret.zip// The password is "secret".
$dsaKey = newCkPrivateKey();
$success = $dsaKey->LoadEncryptedPemFile('qa_data/dsa/dsa1024_secret.pem','secret');
if ($success != true) {
print $dsaKey->lastErrorText() . "\n";
exit;
}
// To create the XML digital signature (i.e. embed the signature within// the XML), first specify what is desired, then call the method to// create the XML signature.// // For example, the application must provide the following:// - Where to put the signature.// - What to sign.// - The algorithms to be used.// - The key to be used for signing.//
$xmlSigGen = newCkXmlDSigGen();
// In this example, we're going to put the signature within the Security element.// To specify the location, set the SigLocation property to the XML path to this element,// using vertical bar characters to separate tags.
$xmlSigGen->put_SigLocation('Envelope|Header|Security');
// An XML digital signature contains one or more references. These can be references to the parts// of the XML document to be signed (a same document reference), or can be external references.// This example will add a single same-document reference. We'll add a reference to the XML fragment// at Body, which is indicated by providing the value of the "ID" attribute (where "ID" is case// insensitive). In this case, we specify "abc" because Body has an Id="abc".// This causes the <Body> ... </Body> XML fragment to be signed.// // For each same-document reference, we must also indicate the hash algorithm and XML canonicalization// algorithm to be used. For this example we'll choose SHA1 and Exclusive XML Canonicalization.
$xmlSigGen->AddSameDocRef('abc','sha1','EXCL_C14N','','');
// Provide the DSA key to be used for signing:
$xmlSigGen->SetPrivateKey($dsaKey);
// We're leaving the following properties at their default values:// // - SigNamespacePrefix (default is "ds")// - SignedInfoCanonAlg (default is EXCL_C14N)// - KeyInfoType (default is "KeyValue", where the DSA public key is included in the Signature)// Note: Each Reference has it's own specified algorithms for XML canonicalization and hashing,// and the actual signature part (the SignedInfo) has it's own hash/canonicalization algorithm.// They may or may not be the same. In this example, we use Exclusive XML Canonicalization and SHA1 throughout.// The default SignedInfoDigestMethod is sha256, which is a good choice. This example will// change it to sha1.
$xmlSigGen->put_SignedInfoDigestMethod('sha1');
// OK, everything's specified, so let's create the XML digital signature:// This in-place signs the XML. If successful, sbXml will contain the// XML with the digital signature at the specified location.
$success = $xmlSigGen->CreateXmlDSigSb($sbXml);
if ($success != true) {
print $xmlSigGen->lastErrorText() . "\n";
exit;
}
// Examine the signed XML:print $sbXml->getAsString() . "\n";
// Below is the signed XML that is produced.// Chilkat emits the Signature in compact form on a single line. Whitespace in XML signatures// matters. Chilkat's opinion is that writing the Signature without whitespace minimizes the chance// for problems with whatever software might be verifying the signature.// <?xml version="1.0" encoding="UTF-8" standalone="no"?>// <Envelope>// <Header>// <Security>// <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#dsa-sha1"/><ds:Reference URI="#abc"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><ds:DigestValue>77X3L6odxTBow1W1dIiqZW1foow=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>Ci/KiAqoQLvNyK94n8TJwdJ6dVpIIy8tJg+9s8utmB92cW8lTd+U7g==</ds:SignatureValue><ds:KeyInfo><ds:KeyValue><ds:DSAKeyValue><ds:P>AN+Af9FvnqYl84Own8m/MHza9vVFEbpySOiWyeIM8diDjaES9i+UykaX9BGc0oaRJHtrHhe+gboMBGHfP+gYcgbqzeyVCi2kHghRD/TK7uI4jN8Yv8tfM6AO0QrDFfxFq4IV+qTZbSoCkbWaopQ+kEOY6B4btFxJ1YuE48mExMZ3</ds:P><ds:Q>AOCv5pwf4kvMW37Yzt0iH6URKOlD</ds:Q><ds:G>FO3eoDcpuU9Z25OQGFtC+M2ifczcKyRkFwTauGR3mIw0wePPiu3Ocr7A81SA8GQ9x3hWO5jyP//jL3jxYy8fgBg2RXwiic3nwT2rZfu50g6tPUpz1stKz/+Mxjulo6XuaMSOWwjU021IxVMzxQ1/L8QiwiIrwxvfQOaMY8HJgvw=</ds:G><ds:Y>JJmZQvWtrZ+Nb2YV47SfGAave8uOIedGlmg+CseoqKZC2aFcWM6kR0giUwQx834dhxQScRhqzxFxQPk/x+5hyG8LQbXW+BELmT1BiyodobYUAet4rSIt4EU4KU0iYw1drpcWT1jqI07l5xNi28heYSfSF5Odv2qwXxVKDSEeEkM=</ds:Y></ds:DSAKeyValue></ds:KeyValue></ds:KeyInfo></ds:Signature></Security>// </Header>// <Body Id="abc">// <z:FooBar xmlns:z="https://www.example-code.com"/>// </Body>// </Envelope>// The above signed XML contains the DSA public key in the DSAKeyValue fragment (within the ds:KeyInfo).// The signature can easily be verified like this:
$verifier = newCkXmlDSig();
// First load the XML containing the signature(s) to be verified.
$success = $verifier->LoadSignatureSb($sbXml);
if ($success != true) {
print $verifier->lastErrorText() . "\n";
exit;
}
$bVerified = $verifier->VerifySignature(true);
if ($bVerified != true) {
print $verifier->lastErrorText() . "\n";
}
print'Signature verified = ' . $bVerified . "\n";
?>